The increase of the area of the inner surface can be considered as Heaviside step function, its derivative is Dirac delta function.

The PN code has a 'good' ambiguity auto-correlation function like Delta function and correlation flow measurement can avoid direct time counting.

伪随机码具有优良的双值自相关函数特性，其形状类似冲激函数，而相关测量避免了对微小时间的直接测量。

Based on Robinson's work, and two-phase calculus, the Dirac Delta function has been discussed in some detail.

本文运用两相微积分学，深入研究了狄拉克δ函数。

Dirac Delta Function Discrete Ordinate Method for a One-Speed Transport Equation with Anisotropic Scatterings

δ函数S N方法求解含各向异性散射输运方程的本征值问题

The interpolation function has the Delta function property, so the essential boundary conditions can be simply imposed.

由于插值函数具有Delta函数特点，因此可以很方便地施加本质边界条件。

Dirac Delta Function Via Nonstandard Analysis

用非标准分析表示Diracδ函数

The calculation shows that the system point spread function is quite close to the Dirac delta function.

结果表明：系统的点扩散函数接近理想的δ函数；

This system realizes the basic edit function and some functions in common use.

本系统实现了数字化软件的基本编辑功能和常用的计算功能。

To apply modem information technology, librarians should resort mainly to the search, edit and communication functions supplemented by the recreation function.

其中，现代信息技术的利用应该体现检索、编辑和通信功能为主，娱乐功能为辅的原则。

The edit and delete functions work in a relatively straightforward way and should not need additional explanation.

编辑和删除功能的原理相对来说比较简单，应该不需要另加解释。

We can edit these functions to include calls to our history stack just before making calls to the Sajax functions.

通过编辑这些函数，可以在调用Sajax函数之前让该函数先调用历史堆栈。

Inline editing: Quick editing of specific items in the backlog allows users to make fast changes without going to a separate screen to perform edit functions.

行内编辑：对backlog中指定项目进行快速编辑，这让用户可以对其做出快速的改变，而不需要转到单独的页面去执行编辑功能。

This paper discusses how to interchange data with other windows applications through clipboard in one's own graphic programs and presents the implement methods of some basic edit functions such as copy, paste and cut.

本文介绍如何在自己的Windows图形软件中利用剪切板与其它程序交换数据，以及基本编辑功能拷贝、粘贴及剪切的实现。

Several sufficient conditions of oscillation for such systerm are established by employing Robin eigen-function and impulsive delay differential inequalities.

利用Robin特征函数和脉冲时滞微分不等式得到了这类系统解振动的充分条件。

As network input, the fault feature is enhanced by eigen-function in modeling.

在建模过程中，利用特征函数强化故障特征作为网络输入。

In the last chapter, oscillations of a system of hyperbolic equations are deduced from the corresponding properties of an ordinary differential inequalities by using eigen function and Green formula, etc.

第五章研究了一类脉冲时滞双曲方程组，利用符号函数，特征函数，Green公式等有力工具将其解振动与否转化到讨论一类脉冲微分不等式是否有最终正负解来研究。

In this paper, the eigen function expansions of displacements and stress of bi-metal laminates with interface cracks are obtained.

本文根据穆斯海里什维利公式、裂纹表面边界条件与界面连续条件得到了含有层间裂纹的双金属层板应力与位移场的本征展开式。

Quantum invariant eigenvalue and eigen function of quantum invariant operator of time-dependent damped harmonic oscilator

含时阻尼谐振子的量子不变量算符及其本征值和本征函数

The boundary conditions are satisfied rigorously and the solutions are expressed by means of eigen function expansions.

边界条件可以精确满足，同时，解答是用本征函数展开式表达的。

A general eigen function was deduced for computing global buckling load combined with a Rayleigh-Ritz method.

结合Rayleigh-Ritz能量近似法，推导出了求解加筋板总体屈曲载荷的通用特征方程；

For solving the matrix, we suggest a special iterative method in which the initial values of each iteration are estimated uncommonly. The discrete data of eigen-function would be exact enough when the iteration was run abort 10 to 20 cycles.

本文提出采用叠代法，可求解阶数很高的矩阵，但叠代初值须经特殊处理，经过10～20次的叠代就可得到足够精确的反应器特性函数的离散值。